[KongchangAI]
Unverified85% confidenceTradeoffTime unknown

采用弧簧(arcing spring)设计,相比扁簧隔膜更适合子宫位置偏前/偏后或阴道张力一般的使用者,但对从未使用过隔膜的人来说学习曲线较陡

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